code: def parse_usage(usage):
      return {
          "completion": usage["completion_tokens"]
          if "completion_tokens" in usage
          else 0,
          "prompt": usage["prompt_tokens"]
          if "prompt_tokens" in usage
          else 0,
      }
  
file_path: litellm/litellm/integrations/llmonitor.py
imports: import datetime
  import traceback
  import dotenv
  import os
  import requests
label_desc: Use image node_id 1 for calling a global function with example usage: parse_usage(usage) and returns: dict